Iwonder if it's some type of nerve issue, but I thought with a root canal all the roots are gone. I still have to go back to my normal dentist to get the permanent crown sealed on.
I felt a slight pain around the tooth and even a weird feeling inside even after I had the crown put on from what I recall. Initially the tooth felt like something had been done to it for at least a week or two after the procedue, but it's now been a year or so and I don't have any problems and it feels normal. But yeah, mention it to the dentist before they put the crown on just to be sure.
